Taxons are not loading in admin



I have a problem in Sylius administration. When I go to edit a product and go to the tab Taxons the loading is spinning and spinning, in console I get an error API: No URL specified for api event . It worked before and I didn’t touched the admin source code.

I honestly don’t know, how to fix it and even where to start with debugging it.

Sylius version: 1.3.3


I’m experiencing exactly the same issue with Sylius 1.3.5

Did you manage to find a fix @Holicz ?